it does indeed have a thick aluminum bedding block. I have an HS stock as well on mine and from my stand point, Its rowbust,very well built and configures well into the reciever. This is why (to me) something isnt right. I dont have your stock in frt of me as to have a comparison, but aluminum against carbon steel isnt gonna give that easy, especailly with only 30-40 rds thru it.
Only thing I can think of is thta your HS stock model doesnt extend the aluminum block to the rear action screw allowing the rear of the stock to "give"....a spacer that may have been intergrated into the rear of the stock that may have come off?.......
I personally twist mine tighter than 40 in lbs as do others 60-65.
I pull,d my actions screws out, installed the bolt, mic,d the depth from bolt to stock at the action screw holes for clreance values, purchased high carbon allen heads with a thicker boss/shoulder, cut the bolts to lenght, cleaned and blued the bolts. I did this because I notice that my frt action screw wasnt threading into the reciever but maybe 3 threads. I wanted to get maximum attachment surface which basically meant I was able to get 2 more threads into the reciever. it put my mind at ease knowing that Im torqueing the actions screws just a bit tighter and i have ample threads being carfeull not to over tighten and cause "tension" issues to the reciever.
Good luck
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